Home / 782,683.36-1,174,219.44-221,722.72

Finding the Fourth Proportional to 782,683.36, 1,174,219.44 and 221,722.72

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Solution

The fourth proportional to 782,683.36, 1,174,219.44 and 221,722.72 is: 332,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,683.36 : 1,174,219.44 = 221,722.72 : x
  2. Step 2: Convert to fraction form
    782,683.36/1,174,219.44 = 221,722.72/x
  3. Step 3: Cross multiply
    782,683.36x = 1,174,219.44 × 221,722.72
  4. Step 4: Simplify right side
    782,683.36x = 260,351,128,113.68
  5. Step 5: Solve for x
    x = 260,351,128,113.68/782,683.36
  6. Step 6: Final answer
    x = 332,639.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.